package com.wk.util;

import java.util.Properties;

import javax.mail.Authenticator;
import javax.mail.MessagingException;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMessage.RecipientType;

public class MailUtil {

    private static PropertiesUtil propUtil =new PropertiesUtil("mail.properties");

    public static boolean sendEmail(String email,String text) throws MessagingException{
        // 配置发送邮件的环境属性
        final Properties props = new Properties();
        // 表示SMTP发送邮件，需要进行身份验证
        props.put("mail.smtp.auth", propUtil.getProperty("mail.smtp.auth"));
        props.put("mail.smtp.host", propUtil.getProperty("mail.smtp.host"));
        props.put("mail.smtp.port", propUtil.getProperty("mail.smtp.port"));
        // 发件人的账号
        props.put("mail.user", propUtil.getProperty("mail.user"));
        // 访问SMTP服务时需要提供的密码
        props.put("mail.password", propUtil.getProperty("mail.password"));
        props.put("mail.transport.protocol", propUtil.getProperty("mail.transport.protocol")); // 设置邮件的传输协议是smtp 
       
        // 构建授权信息，用于进行SMTP进行身份验证
        Authenticator authenticator = new Authenticator() {
            @Override
            protected PasswordAuthentication getPasswordAuthentication() {
                // 用户名、密码
                String userName = props.getProperty("mail.user");
                String password = props.getProperty("mail.password");
                return new PasswordAuthentication(userName, password);
            }
        };
        // 使用环境属性和授权信息，创建邮件会话
        Session mailSession = Session.getInstance(props, authenticator);
                
        // 创建邮件消息
        MimeMessage message = new MimeMessage(mailSession);
        // 设置发件人
        InternetAddress form = new InternetAddress(props.getProperty("mail.user"));
        message.setFrom(form);

        // 设置收件人
        InternetAddress to = new InternetAddress(email);
        message.setRecipient(RecipientType.TO, to);
        // 设置邮件标题
        message.setSubject("邮箱注册验证码");
        // 设置邮件的内容体
        message.setContent(text, "text/html;charset=UTF-8");
        // 发送邮件
        Transport.send(message);
        return true;
    }
    
    public static void main(String[] args) throws MessagingException {
    	int code =(int) (Math.random() * 9000) + 1000;
    	MailUtil.sendEmail("",String.valueOf(code));
    }
}
